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nuodb_driver.c
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nuodb_driver.c
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/****************************************************************************
* Copyright (c) 2012 - 2014, NuoDB, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of NuoDB, Inc. nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NUODB, INC. BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
****************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdarg.h>
#ifdef _MSC_VER /* Visual Studio specific */
#include <stdint.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/utime.h>
#else
#include <sys/time.h>
#endif
#include "php.h"
#ifdef ZEND_ENGINE_2
# include "zend_exceptions.h"
#endif
#include "php_ini.h"
#include "ext/standard/info.h"
#include "pdo/php_pdo.h"
#include "pdo/php_pdo_driver.h"
#include "php_pdo_nuodb.h"
#define PdoNuoDbStatement void
#define PdoNuoDbHandle void
#include "php_pdo_nuodb_c_cpp_common.h"
#include "php_pdo_nuodb_int.h"
/* {{{ sqlcode_to_sqlstate_t
*
* Workaround DB-4112 (see below)
*/
struct sqlcode_to_sqlstate_t {
int sqlcode;
char *sqlstate;
};
/* }}} */
ZEND_DECLARE_MODULE_GLOBALS(pdo_nuodb)
char const * const NUODB_OPT_DATABASE = "database";
char const * const NUODB_OPT_USER = "user";
char const * const NUODB_OPT_PASSWORD = "password";
char const * const NUODB_OPT_SCHEMA = "schema";
char const * const NUODB_OPT_IDENTIFIERS = "identifiers";
char const * const NUODB_OPT_LBTAG = "LBTag";
static int nuodb_alloc_prepare_stmt(pdo_dbh_t *, pdo_stmt_t *, const char *, long, PdoNuoDbStatement ** nuodb_stmt TSRMLS_DC);
ZEND_API ZEND_COLD zend_object *zend_throw_exception_ex(zend_class_entry *exception_ce, zend_long code, const char *format, ...);
/* {{{ sqlcode_to_sqlstate_t
*
* Workaround DB-4112. NuoDB C++ exceptions do not currently
* return a string for the SqlState. Until that gets fix, we will
* simply map the sqlcode returned by NuoDB to an apporiate
* SqlState string. For now, steal the SQL states from SQLState.java
*/
static struct sqlcode_to_sqlstate_t sqlcode_to_sqlstate[] = {
{-1, "42000"},
{-2, "0A000"},
{-3, "58000"},
{-4, "42000"},
{-5, "58000"},
{-6, "08000"},
{-7, "08000"},
{-8, "22000"},
{-9, "22000"},
{-10, "08000"},
{-11, "42000"},
{-12, "58000"},
{-13, "58000"},
{-14, "58000"},
{-15, "58000"},
{-16, "58000"},
{-17, "58000"},
{-18, "58000"},
{-19, "22000"},
{-20, "22000"},
{-21, "22000"},
{-22, "58000"},
{-23, "58000"},
{-24, "40002"},
{-25, "42000"},
{-26, "58000"},
{-27, "23000"},
{-28, "58000"},
{-29, "40001"},
{-30, "58000"},
{-31, "58000"},
{-32, "58000"},
{-33, "0X000"}, /* filler -- does not exist in nuodb */
{-34, "0X000"}, /* filler -- does not exist in nuodb */
{-35, "0x000"}, /* filler -- does not exist in nuodb */
{-36, "58000"},
{-37, "58000"},
{-38, "58000"},
{-39, "58000"},
{-40, "58000"},
{-41, "58000"},
{-42, "01000"},
{-43, "0A000"},
{-44, "58000"},
{-45, "23001"},
{-46, "58000"},
{-47, "58000"},
{-48, "HY008"},
{-49, "58000"},
{-50, "58000"},
{-51, "58000"},
{-52, "58000"},
{-53, "58000"},
{-54, "42703"}, /* An undefined column or parameter name was detected. */
{-55, "58000"}
};
/* }}} */
int nuodb_handle_commit(pdo_dbh_t * dbh TSRMLS_DC);
/* {{{ nuodb_get_sqlstate
*
* Workaround DB-4112
*/
const char *nuodb_get_sqlstate(int sqlcode) {
int index = abs(sqlcode) - 1;
if ((sqlcode > -1) || (sqlcode < -55)) {
return NULL;
}
return sqlcode_to_sqlstate[index].sqlstate;
}
/* {{{ _record_error
*
* All errors get recorded here.
*/
int _record_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, const char *file, int line, const char *sql_state, int error_code, const char *error_message)
{
pdo_nuodb_db_handle *H = (pdo_nuodb_db_handle *)dbh->driver_data;
pdo_error_type *pdo_err;
pdo_nuodb_error_info *einfo;
pdo_nuodb_stmt *S = NULL;
if (stmt) {
S = (pdo_nuodb_stmt*)stmt->driver_data;
pdo_err = &stmt->error_code;
einfo = &S->einfo;
PDO_DBG_LEVEL_FMT(PDO_NUODB_LOG_ERRORS, "dbh=%p : _record_error: sql_state=%s error_code=%d error_message=%s sql=%s", dbh, sql_state, error_code, error_message, S->sql);
} else {
pdo_err = &dbh->error_code;
einfo = &H->einfo;
PDO_DBG_LEVEL_FMT(PDO_NUODB_LOG_ERRORS, "dbh=%p : _record_error: sql_state=%s error_code=%d error_message=%s", dbh, sql_state, error_code, error_message);
}
einfo->errcode = error_code;
einfo->file = (char *)file;
einfo->line = line;
if (einfo->errmsg) {
pefree(einfo->errmsg, dbh->is_persistent);
einfo->errmsg = NULL;
}
if (!einfo->errcode) { /* no error */
strcpy(*pdo_err, PDO_ERR_NONE);
PDO_DBG_RETURN(0, dbh);
}
einfo->errmsg = pestrdup(error_message, dbh->is_persistent);
strncpy(*pdo_err, sql_state, PDO_NUODB_SQLSTATE_LEN);
if (!dbh->methods) {
TSRMLS_FETCH();
PDO_DBG_LEVEL_FMT(PDO_NUODB_LOG_ERRORS, "dbh=%p : _record_error: Throwing exception", dbh);
zend_throw_exception_ex(php_pdo_get_exception(), einfo->errcode TSRMLS_CC, "SQLSTATE[%s] [%d] %s",
*pdo_err, einfo->errcode, einfo->errmsg);
}
PDO_DBG_RETURN(einfo->errcode, dbh);
}
/* }}} */
/* {{{ _record_error_formatted
*/
int _record_error_formatted(pdo_dbh_t *dbh, pdo_stmt_t *stmt, const char *file, int line, const char *sql_state, int error_code, const char *format, ...)
{
va_list arg;
char *error_message;
int ret = 1;
va_start(arg, format);
vspprintf(&error_message, 0, format, arg);
va_end(arg);
ret = _record_error(dbh, stmt, file, line, sql_state, error_code, strdup(error_message));
efree((char *)error_message);
return ret;
}
/* }}} */
/* {{{ _pdo_nuodb_error
*/
int _pdo_nuodb_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, const char *file, int line)
{
int ret = 1;
pdo_nuodb_db_handle *H = (pdo_nuodb_db_handle *)dbh->driver_data;
pdo_nuodb_stmt *S = NULL;
const char *sql_state = NULL;
int error_code = 0;
const char *error_message = NULL;
PDO_DBG_ENTER("_pdo_nuodb_error", dbh);
if (stmt) {
S = (pdo_nuodb_stmt*)stmt->driver_data;
sql_state = *(pdo_nuodb_stmt_sqlstate(S));
error_code = pdo_nuodb_stmt_errno(S);
error_message = pdo_nuodb_stmt_errmsg(S);
} else {
sql_state = *(pdo_nuodb_db_handle_sqlstate(H));
error_code = pdo_nuodb_db_handle_errno(H);
error_message = pdo_nuodb_db_handle_errmsg(H);
}
ret = _record_error(dbh, stmt, file, line, sql_state, error_code, error_message);
PDO_DBG_RETURN(ret, dbh);
}
/* }}} */
/* {{{ nuodb_handle_closer
*
* Called by PDO to close a db handle
*/
static int nuodb_handle_closer(pdo_dbh_t * dbh TSRMLS_DC)
{
pdo_nuodb_db_handle * H = (pdo_nuodb_db_handle *)dbh->driver_data;
PDO_DBG_ENTER("nuodb_handle_closer", dbh);
PDO_DBG_LEVEL_FMT(PDO_NUODB_LOG_SQL, "dbh=%p : close db handle", dbh);
if (H == NULL) {
PDO_DBG_RETURN(0, dbh);
}
if (H->in_nuodb_implicit_txn == 1) {
nuodb_handle_commit(dbh TSRMLS_CC);
}
pdo_nuodb_db_handle_close_connection(H);
pdo_nuodb_db_handle_delete(H);
if (H->einfo.errmsg) {
pefree(H->einfo.errmsg, dbh->is_persistent);
H->einfo.errmsg = NULL;
}
pefree(H, dbh->is_persistent);
PDO_DBG_RETURN(1, dbh);
}
/* }}} */
/* {{{ nuodb_handle_preparer
*
* Called by PDO to prepare an SQL query
*/
static int nuodb_handle_preparer(pdo_dbh_t * dbh, const char * sql,
size_t sql_len, pdo_stmt_t * stmt,
zval* driver_options TSRMLS_DC)
{
int ret = 0;
pdo_nuodb_db_handle * H = (pdo_nuodb_db_handle *)dbh->driver_data;
pdo_nuodb_stmt * S = NULL;
PdoNuoDbStatement * nuodb_stmt;
int map_size = 0;
int count_input_params = 0;
int index = 0;
char rewritten = 0;
//HashPosition pos;
//int keytype;
//zend_string *strindex;
//int strindexlen;
//zend_long intindex = -1;
long max_index = 0;
char *nsql = NULL;
size_t nsql_len = 0;
char *pData;
PDO_DBG_ENTER("nuodb_handle_preparer", dbh);
stmt->supports_placeholders = PDO_PLACEHOLDER_NAMED;
stmt->named_rewrite_template = ":pdo%d";
ret = pdo_parse_params(stmt, (char*)sql, sql_len, &nsql, &nsql_len TSRMLS_CC);
if (ret == 1) { /* the SQL query was re-written */
rewritten = 1;
sql = nsql;
sql_len = nsql_len;
}
else if (ret == -1) { /* could not understand it! */
strcpy(dbh->error_code, stmt->error_code);
PDO_DBG_RETURN(0, dbh);
}
S = (pdo_nuodb_stmt *) ecalloc(1, sizeof(*S));
S->H = H;
S->stmt = NULL;
S->einfo.errcode = 0;
S->einfo.errmsg = NULL;
S->sql = strdup(sql);
S->qty_input_params = 0;
S->implicit_txn = 0;
S->commit_on_close = 0;
S->in_params = NULL;
S->out_params = NULL;
stmt->driver_data = S;
stmt->methods = &nuodb_stmt_methods;
PDO_DBG_INF_FMT("dbh=%p S=%p sql=%.*s", dbh, S, sql_len, sql);
if (stmt->bound_param_map)
{
map_size = zend_hash_num_elements(stmt->bound_param_map);
if ((map_size > 0) && (S->in_params == NULL))
{
index = 0;
S->in_params = (nuo_params *) ecalloc(1, NUO_PARAMS_LENGTH(map_size));
S->in_params->num_alloc = S->in_params->num_params = map_size;
for (index = 0; index < map_size; index++) {
S->in_params->params[index].col_name[0] = '\0';
S->in_params->params[index].col_name_length = 0;
S->in_params->params[index].len = 0;
S->in_params->params[index].data = NULL;
}
}
}
if (stmt->bound_param_map != NULL) /* find the largest int key */
{
zval *val = NULL;
zend_string* keytry = NULL;
zend_long search_key = -1;
ZEND_HASH_FOREACH_KEY_VAL(stmt->bound_param_map, search_key, keytry, val) {
PDO_DBG_INF_FMT("dbh=%p : search_key:%d keytry:%s val:%p",
stmt->dbh, search_key, keytry ? ZSTR_VAL(keytry) : NULL, val);
if (keytry == NULL && search_key > max_index) {
max_index = search_key;
}
} ZEND_HASH_FOREACH_END();
S->qty_input_params = max_index + 1;
}
/* allocate and prepare statement */
if (!nuodb_alloc_prepare_stmt(dbh, stmt, sql, sql_len, &nuodb_stmt TSRMLS_CC)) {
/* There was an error preparing the statement */
if (rewritten == 1) efree((void *)sql);
PDO_DBG_RETURN(0, dbh);
}
S->stmt = nuodb_stmt;
index = 0;
stmt->driver_data = S;
stmt->methods = &nuodb_stmt_methods;
stmt->supports_placeholders = PDO_PLACEHOLDER_POSITIONAL;
if (rewritten == 1) efree((void *)sql);
PDO_DBG_RETURN(1, dbh);
}
/* }}} */
/* {{{ pdo_dbh_t_set_in_txn
*/
static void pdo_dbh_t_set_in_txn(void *dbh_opaque, unsigned in_txn)
{
pdo_dbh_t *dbh = (pdo_dbh_t *)dbh_opaque;
dbh->in_txn = in_txn;
}
/* }}} */
/* {{{ nuodb_handle_doer
*
* Called by PDO to execute a statement that doesn't produce a result
* set
*/
static long nuodb_handle_doer(pdo_dbh_t * dbh, const char * sql,
size_t sql_len TSRMLS_DC)
{
pdo_nuodb_db_handle * H = NULL;
long res;
PDO_DBG_ENTER("nuodb_handle_doer", dbh);
PDO_DBG_INF_FMT("dbh=%p : sql=%.*s", dbh, sql_len, sql);
H = (pdo_nuodb_db_handle *)dbh->driver_data;
res = pdo_nuodb_db_handle_doer(H, dbh, sql, (unsigned)dbh->in_txn, (unsigned)dbh->auto_commit, &pdo_dbh_t_set_in_txn);
/* do we have a dbh error code? */
if (strncmp(dbh->error_code, PDO_ERR_NONE, PDO_NUODB_SQLSTATE_LEN)) {
PDO_DBG_RETURN(-1, dbh);
}
PDO_DBG_RETURN(res, dbh);
}
/* }}} */
/* {{{ nuodb_handle_quoter
*
* Called by the PDO SQL parser to add quotes to values
* that are copied into SQL
*/
static int nuodb_handle_quoter(pdo_dbh_t * dbh, const char * unquoted,
size_t unquotedlen, char ** quoted,
size_t * quotedlen,
enum pdo_param_type paramtype TSRMLS_DC)
{
int qcount = 0;
char const * co, *l, *r;
char * c;
PDO_DBG_ENTER("nuodb_handle_quoter", dbh);
PDO_DBG_INF_FMT("dbh=%p unquoted=%.*s", dbh, unquotedlen, unquoted);
if (!unquotedlen)
{
*quotedlen = 2;
*quoted = (char *) emalloc(*quotedlen+1);
strcpy(*quoted, "''");
PDO_DBG_RETURN(1, dbh);
}
/* only require single quotes to be doubled if string lengths are used
* count the number of ' characters
*/
for (co = unquoted; (co = strchr(co,'\'')); qcount++, co++);
*quotedlen = unquotedlen + qcount + 2;
*quoted = c = (char *) emalloc(*quotedlen+1);
*c++ = '\'';
/* foreach (chunk that ends in a quote) */
for (l = unquoted; (r = strchr(l,'\'')); l = r+1) {
strncpy(c, l, r-l+1);
c += (r-l+1);
/* add the second quote */
*c++ = '\'';
}
/* copy the remainder */
strncpy(c, l, *quotedlen-(c-*quoted)-1);
(*quoted)[*quotedlen-1] = '\'';
(*quoted)[*quotedlen] = '\0';
PDO_DBG_RETURN(1, dbh);
}
/* }}} */
/* {{{ nuodb_handle_begin
*
* Called by PDO to start a transaction
*/
static int nuodb_handle_begin(pdo_dbh_t * dbh TSRMLS_DC)
{
pdo_nuodb_db_handle * H = NULL;
PDO_DBG_ENTER("nuodb_handle_begin", dbh);
PDO_DBG_RETURN(1, dbh);
H = (pdo_nuodb_db_handle *)dbh->driver_data;
H->in_nuodb_implicit_txn = 0;
H->in_nuodb_explicit_txn = 1;
}
/* }}} */
/* {{{ nuodb_handle_commit
*
* Called by PDO to commit a transaction
*/
int nuodb_handle_commit(pdo_dbh_t * dbh TSRMLS_DC)
{
pdo_nuodb_db_handle * H = NULL;
PDO_DBG_ENTER("nuodb_handle_commit", dbh);
H = (pdo_nuodb_db_handle *)dbh->driver_data;
if (pdo_nuodb_db_handle_commit(H) == 0) {
H->in_nuodb_implicit_txn = 0;
H->in_nuodb_explicit_txn = 0;
PDO_DBG_RETURN(0, dbh);
}
H->in_nuodb_implicit_txn = 0;
H->in_nuodb_explicit_txn = 0;
PDO_DBG_RETURN(1, dbh);
}
/* }}} */
/* {{{ nuodb_handle_commit
*
* Called by PDO to rollback a transaction
*/
static int nuodb_handle_rollback(pdo_dbh_t * dbh TSRMLS_DC)
{
pdo_nuodb_db_handle * H = NULL;
PDO_DBG_ENTER("nuodb_handle_rollback", dbh);
H = (pdo_nuodb_db_handle *)dbh->driver_data;
if (pdo_nuodb_db_handle_rollback(H) == 0) {
H->in_nuodb_implicit_txn = 0;
H->in_nuodb_explicit_txn = 0;
PDO_DBG_RETURN(0, dbh);
}
H->in_nuodb_implicit_txn = 0;
H->in_nuodb_explicit_txn = 0;
PDO_DBG_RETURN(1, dbh);
}
/* }}} */
/* {{{ nuodb_alloc_prepare_stmt
*
* Used by prepare and exec to allocate a statement handle and
* prepare the SQL
*/
static int nuodb_alloc_prepare_stmt(pdo_dbh_t * dbh, pdo_stmt_t * pdo_stmt,
const char * sql, long sql_len,
PdoNuoDbStatement ** nuodb_stmt TSRMLS_DC)
{
pdo_nuodb_db_handle * H = NULL;
char * c, *new_sql, in_quote, in_param, pname[PDO_NUODB_PNAME_BUFFER], *ppname;
long l, pindex = -1;
PDO_DBG_ENTER("nuodb_alloc_prepare_stmt", dbh);
PDO_DBG_LEVEL_FMT(PDO_NUODB_LOG_SQL, "dbh=%p : sql=%.*s", dbh, sql_len, sql);
H = (pdo_nuodb_db_handle *)dbh->driver_data;
*nuodb_stmt = NULL;
/* There is no max sql statement length in NuoDB - but use 1Mib for now */
if (sql_len > 0x100000)
{
strcpy(dbh->error_code, "01004");
PDO_DBG_RETURN(0, dbh);
}
/* in order to support named params,
* we need to replace :foo by ?, and store the name we just
* replaced
*/
new_sql = c = (char *) emalloc(sql_len+1);
for (l = in_quote = in_param = 0; l <= sql_len; ++l)
{
if ( !(in_quote ^= (sql[l] == '\'')))
{
if (!in_param)
{
switch (sql[l])
{
case ':':
in_param = 1;
ppname = pname;
*ppname++ = sql[l];
case '?':
*c++ = '?';
++pindex;
continue;
}
}
else
{
if ((in_param &= ((sql[l] >= 'A' && sql[l] <= 'Z') || (sql[l] >= 'a' && sql[l] <= 'z')
|| (sql[l] >= '0' && sql[l] <= '9') || sql[l] == '_' || sql[l] == '-')))
{
*ppname++ = sql[l];
continue;
}
else
{
*ppname++ = 0;
}
}
}
*c++ = sql[l];
}
PDO_DBG_INF_FMT("dbh=%p : nuodb_alloc_prepare_stmt: newsql S=%s", dbh, new_sql);
/* prepare the statement */
*nuodb_stmt = pdo_nuodb_db_handle_create_statement(H, pdo_stmt, new_sql);
PDO_DBG_INF_FMT("dbh=%p : nuodb_alloc_prepare_stmt: S=%p sql=%.*s", dbh, pdo_stmt->driver_data, sql_len, sql);
efree(new_sql);
if (*nuodb_stmt == NULL) {
PDO_DBG_RETURN(0, dbh);
}
/* do we have a statement error code? */
if ((pdo_stmt->error_code[0] != '\0') && strncmp(pdo_stmt->error_code, PDO_ERR_NONE, PDO_NUODB_SQLSTATE_LEN)) {
PDO_DBG_RETURN(0, dbh);
}
/* do we have a dbh error code? */
if (strncmp(dbh->error_code, PDO_ERR_NONE, PDO_NUODB_SQLSTATE_LEN)) {
PDO_DBG_RETURN(0, dbh);
}
PDO_DBG_RETURN(1, dbh);
}
/* }}} */
/* {{{ nuodb_handle_last_id
* Called by PDO to get the last insert id
*/
static char *nuodb_handle_last_id(pdo_dbh_t *dbh, const char *name,
size_t *len TSRMLS_DC)
{
int c = 0;
pdo_nuodb_db_handle * H = (pdo_nuodb_db_handle *)dbh->driver_data;
char *id_str = NULL;
int id = pdo_nuodb_db_handle_last_id(H, name);
if (id == 0) {
return NULL;
}
*len = snprintf(NULL, 0, "%lu", id);
id_str = (char *) emalloc((*len)+1);
c = snprintf(id_str, (*len)+1, "%lu", id);
return id_str;
}
/* }}} */
/* {{{ nuodb_handle_set_attribute
* Called by PDO to set a driver-specific dbh attribute
*/
static int nuodb_handle_set_attribute(pdo_dbh_t * dbh, zend_long attr,
zval* val TSRMLS_DC)
{
pdo_nuodb_db_handle * H = NULL;
PDO_DBG_ENTER("nuodb_handle_set_attribute", dbh);
H = (pdo_nuodb_db_handle *)dbh->driver_data;
switch (attr)
{
case PDO_ATTR_AUTOCOMMIT:
convert_to_boolean(val);
int zbval = zval_is_true(val);//(Z_TYPE_P(val) == IS_TRUE);
/* ignore if the new value equals the old one */
if (dbh->auto_commit ^ zbval) {
if (dbh->in_txn) {
if (zbval) {
/* turning on auto_commit with an open transaction is illegal, because
we won't know what to do with it */
_record_error_formatted(dbh, NULL, __FILE__, __LINE__, "HY011", PDO_NUODB_SQLCODE_INTERNAL_ERROR, "Cannot enable auto-commit while a transaction is already open");
PDO_DBG_RETURN(0, dbh);
} else {
/* close the transaction */
if (!nuodb_handle_commit(dbh TSRMLS_CC)) {
break;
}
dbh->in_txn = 0;
}
}
dbh->auto_commit = zbval;
pdo_nuodb_db_handle_set_auto_commit(H, dbh->auto_commit);
}
PDO_DBG_RETURN(1, dbh);
case PDO_ATTR_FETCH_TABLE_NAMES:
convert_to_boolean(val);
//int zbval = (Z_TYPE_P(item) == IS_TRUE);
H->fetch_table_names = zval_is_true(val);//(Z_TYPE_P(val) == IS_TRUE);
PDO_DBG_RETURN(1, dbh);
case PDO_NUODB_ATTR_TXN_ISOLATION_LEVEL:
convert_to_long(val);
H->default_txn_isolation_level = Z_LVAL_P(val);
PDO_DBG_RETURN(1, dbh);
default:
PDO_DBG_ERR_FMT("dbh=%p : unknown/unsupported attribute: %d", dbh, attr);
break;
}
PDO_DBG_RETURN(0, dbh);
}
/* }}} */
/* {{{ nuodb_handle_get_attribute
* Called by PDO to get a driver-specific dbh attribute
*/
static int nuodb_handle_get_attribute(pdo_dbh_t * dbh, long attr,
zval * val TSRMLS_DC)
{
pdo_nuodb_db_handle * H = (pdo_nuodb_db_handle *)dbh->driver_data;
switch (attr)
{
case PDO_ATTR_AUTOCOMMIT:
ZVAL_LONG(val,dbh->auto_commit);
return 1;
case PDO_ATTR_CONNECTION_STATUS:
return 1;
case PDO_ATTR_CLIENT_VERSION:
ZVAL_STRING(val,"NuoDB 3.0.0");
return 1;
case PDO_ATTR_SERVER_VERSION:
case PDO_ATTR_SERVER_INFO:
{
char *info = NULL;
const char *server_name = pdo_nuodb_db_handle_get_nuodb_product_name(H);
const char *server_version = pdo_nuodb_db_handle_get_nuodb_product_version(H);
if ((server_name == NULL) || (server_version == NULL)) return 1;
info = emalloc(strlen(server_name) + strlen(server_version) + 2);
sprintf(info, "%s %s", server_name, server_version);
ZVAL_STRING(val, info);
efree(info);
return 1;
}
case PDO_ATTR_FETCH_TABLE_NAMES:
ZVAL_BOOL(val, H->fetch_table_names);
return 1;
case PDO_NUODB_ATTR_TXN_ISOLATION_LEVEL:
ZVAL_LONG(val, H->default_txn_isolation_level);
return 1;
}
return 0;
}
/* }}} */
/* {{{ pdo_nuodb_fetch_error_func
*
* Called by PDO to retrieve driver-specific information about an
* error that has occurred
*/
static int pdo_nuodb_fetch_error_func(pdo_dbh_t * dbh, pdo_stmt_t * stmt, zval * info TSRMLS_DC)
{
pdo_nuodb_db_handle * H = (pdo_nuodb_db_handle *)dbh->driver_data;
pdo_nuodb_error_info *einfo = &H->einfo;
PDO_DBG_ENTER("pdo_nuodb_fetch_error_func", dbh);
PDO_DBG_INF_FMT("dbh=%p stmt=%p", dbh, stmt);
if (stmt) {
pdo_nuodb_stmt *S = (pdo_nuodb_stmt *)stmt->driver_data;
einfo = &S->einfo;
} else {
einfo = &H->einfo;
}
if (einfo->errcode) {
add_next_index_long(info, einfo->errcode);
add_next_index_string(info, einfo->errmsg);
}
PDO_DBG_RETURN(1, dbh);
}
/* }}} */
/* {{{ nuodb_methods
*
* PDO Driver methods.
*/
static struct pdo_dbh_methods nuodb_methods =
{
nuodb_handle_closer,
nuodb_handle_preparer,
nuodb_handle_doer,
nuodb_handle_quoter,
nuodb_handle_begin,
nuodb_handle_commit,
nuodb_handle_rollback,
nuodb_handle_set_attribute,
nuodb_handle_last_id,
pdo_nuodb_fetch_error_func,
nuodb_handle_get_attribute,
NULL /* check_liveness */
};
/* }}} */
/* {{{ pdo_nuodb_handle_factory
*
* The driver-specific PDO handle constructor
*/
static int pdo_nuodb_handle_factory(pdo_dbh_t * dbh, zval* driver_options TSRMLS_DC)
{
struct pdo_data_src_parser vars[] =
{
{ NUODB_OPT_DATABASE, NULL, 0 }, /* "database" */
{ NUODB_OPT_SCHEMA, NULL, 0 }, /* "schema" */
{ NUODB_OPT_LBTAG, NULL, 0}
};
struct nuodb_iso_levels_t {
int level_id;
const char *level_name;
};
struct nuodb_iso_levels_t nuodb_iso_levels[6] = {
{7, "ConsistentRead"}, /* KEEP ConsistentRead FIRST */
{5, "WriteCommitted"},
{2, "ReadCommitted"},
{8, "Serializable"},
};
pdo_nuodb_db_handle * H = NULL;
int i;
int ret = 0;
int status;
short dpb_len;
SqlOption options[PDO_NUODB_OPTIONS_ARR_SIZE];
SqlOptionArray optionsArray;
char *errMessage = NULL;
char *def_txn_iso_level_init_string = NULL;
PDO_DBG_ENTER("pdo_nuodb_handle_factory", dbh);
dbh->driver_data = pecalloc(1, sizeof(*H), dbh->is_persistent);
H = (pdo_nuodb_db_handle *) dbh->driver_data;
H->pdo_dbh = dbh;
H->einfo.errcode = 0;
H->einfo.errmsg = NULL;
H->default_txn_isolation_level = PDO_NUODB_TXN_CONSISTENT_READ;
php_pdo_parse_data_source(dbh->data_source, dbh->data_source_len, vars, 3);
options[0].option = "database";
options[0].extra = (void *) vars[0].optval;
if (options[0].extra == NULL) {
H->einfo.errcode = PDO_NUODB_SQLCODE_CONNECTION_ERROR;
H->einfo.file = __FILE__;
H->einfo.line = __LINE__;
_record_error_formatted(H->pdo_dbh, NULL, H->einfo.file, H->einfo.line, "HY000", H->einfo.errcode, "DSN is missing 'database' parameter. DSN=\"%s\"", dbh->data_source);
if (H->einfo.errmsg) {
pefree(H->einfo.errmsg, dbh->is_persistent);
H->einfo.errmsg = NULL;
}
pefree(dbh->driver_data, dbh->is_persistent);
dbh->driver_data = NULL;
for (i = 0; i < sizeof(vars)/sizeof(vars[0]); ++i)
{
if (vars[i].freeme) {
efree(vars[i].optval);
}
}
PDO_DBG_RETURN(0, dbh);
}
options[1].option = "user";
options[1].extra = (void *) dbh->username;
if (options[1].extra == NULL) {
H->einfo.errcode = PDO_NUODB_SQLCODE_CONNECTION_ERROR;
H->einfo.file = __FILE__;
H->einfo.line = __LINE__;
_record_error(H->pdo_dbh, NULL, H->einfo.file, H->einfo.line, "HY000", H->einfo.errcode, "DSN is missing 'user' parameter");
if (H->einfo.errmsg) {
pefree(H->einfo.errmsg, dbh->is_persistent);
H->einfo.errmsg = NULL;
}
pefree(dbh->driver_data, dbh->is_persistent);
dbh->driver_data = NULL;
for (i = 0; i < sizeof(vars)/sizeof(vars[0]); ++i)
{
if (vars[i].freeme) {
efree(vars[i].optval);
}
}
PDO_DBG_RETURN(0, dbh);
}
options[2].option = "password";
options[2].extra = (void *) dbh->password;
if (options[2].extra == NULL) {
H->einfo.errcode = PDO_NUODB_SQLCODE_CONNECTION_ERROR;
H->einfo.file = __FILE__;
H->einfo.line = __LINE__;
_record_error(H->pdo_dbh, NULL, H->einfo.file, H->einfo.line, "HY000", H->einfo.errcode, "DSN is missing 'password' parameter");
if (H->einfo.errmsg) {
pefree(H->einfo.errmsg, dbh->is_persistent);
H->einfo.errmsg = NULL;
}
pefree(dbh->driver_data, dbh->is_persistent);
dbh->driver_data = NULL;
for (i = 0; i < sizeof(vars)/sizeof(vars[0]); ++i)
{
if (vars[i].freeme) {
efree(vars[i].optval);
}
}
PDO_DBG_RETURN(0, dbh);
}
options[3].option = "schema";
options[3].extra = (vars[1].optval == NULL) ? "USER" : vars[1].optval;
options[4].option = "LBTag";
options[4].extra = vars[2].optval;
optionsArray.count = PDO_NUODB_OPTIONS_ARR_SIZE;
optionsArray.array = options;
PDO_DBG_LEVEL_FMT(PDO_NUODB_LOG_SQL, "dbh=%p : pdo_nuodb_handle_factory : database=%s user=%s schema=%s LBTag=%s",
dbh, options[0].extra, options[1].extra, options[3].extra, options[4].extra ? options[4].extra : "");
def_txn_iso_level_init_string = PDO_NUODB_G(default_txn_isolation);
if (def_txn_iso_level_init_string != NULL) {
H->default_txn_isolation_level = PDO_NUODB_TXN_NONE;
for (i = 0; i < 6; i++) {
if (!strcmp(def_txn_iso_level_init_string, nuodb_iso_levels[i].level_name)) {
H->default_txn_isolation_level = nuodb_iso_levels[i].level_id;
break;
}
}
if (H->default_txn_isolation_level == PDO_NUODB_TXN_NONE) {
H->einfo.errcode = -12; // NuoDB SqlCode.APPLICATION_ERROR
H->einfo.file = __FILE__;
H->einfo.line = __LINE__;
_record_error_formatted(H->pdo_dbh, NULL, H->einfo.file, H->einfo.line, "HY000", H->einfo.errcode, "PHP Initialization Default Transaction Isolation level '%s' is incorrect", def_txn_iso_level_init_string);
if (H->einfo.errmsg) {
pefree(H->einfo.errmsg, dbh->is_persistent);
H->einfo.errmsg = NULL;
}
pefree(dbh->driver_data, dbh->is_persistent);
dbh->driver_data = NULL;
for (i = 0; i < sizeof(vars)/sizeof(vars[0]); ++i)
{
if (vars[i].freeme)
{
efree(vars[i].optval);
}
}
PDO_DBG_RETURN(0, dbh);
}
}
status = pdo_nuodb_db_handle_factory(H, &optionsArray, &errMessage);
if (status != 0) {
ret = 1;
}
dbh->methods = &nuodb_methods;
dbh->alloc_own_columns = 1; /* if true, the driver requires that
* memory be allocated explicitly for
* the columns that are returned */
/*
* TODO: the value should reflect how the database returns
* the names of the columns in result sets. If the name matches
* the case that was used in the query, set it to PDO_CASE_NATURAL
* (this is actually the default). If the column names are
* always returned in upper case, set it to PDO_CASE_UPPER. If the
* column names are always returned in lower case, set it to
* PDO_CASE_LOWER. The value you set is used to determine if PDO
* should perform case folding when the user sets the
* PDO_ATTR_CASE attribute. Maybe switch to PDO_CASE_NATURAL when